Home / 5,428.20-8,142.30-2,967.83

Finding the Fourth Proportional to 5,428.20, 8,142.30 and 2,967.83

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Solution

The fourth proportional to 5,428.20, 8,142.30 and 2,967.83 is: 4,451.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.20 : 8,142.30 = 2,967.83 : x
  2. Step 2: Convert to fraction form
    5,428.20/8,142.30 = 2,967.83/x
  3. Step 3: Cross multiply
    5,428.20x = 8,142.30 × 2,967.83
  4. Step 4: Simplify right side
    5,428.20x = 24,164,921.50
  5. Step 5: Solve for x
    x = 24,164,921.50/5,428.20
  6. Step 6: Final answer
    x = 4,451.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.